The distraught woman was treated at a hospital on Monday, and she gave police a formal statement on Tuesday. She later flew back to New Zealand.

Cops are warning online daters to be careful when going on a date through dating apps like Tinder. (www.gotinder.com)

Cops are warning online daters to exhibit extreme caution when they decide to meet up with someone on dating apps like Tinder.

"The vast majority of people who use dating websites and apps do so for the right reasons, but there are a number of sexual predators out there who use modern technology to find potential victims," said New South Wales Detective Inspector Michael Haddow.

"We regularly remind people, children and parents in particular, that the use of the internet by sexual predators is an issue they need to be well aware of," Haddow continued, adding that people should bring a friend and meet their dates in a public place. "All those warnings we give to children are applicable to adults."

Australian police have also dealt with another case of sexual assault that resulted from a Tinder date gone wrong — a man was charged with murdering a New Zealand tourist he met through the app in August.